New World puzzle There are four people who want to cross a rickety bridge; they all begin on the same side. You have 17 minutes to get them all across to the other side. It is night, and they have one flashlight. A maximum of two people can cross the bridge at one time. Any party that crosses, either one or two people, must have the flashlight with them. The flashlight must be walked back and forth; it cannot be thrown, for example. Person 1 takes 1 minute to cross the bridge, person 2 takes 2 minutes, person 3 takes 5 minutes, and person 4 takes 10 minutes. A pair must walk together at the rate of the slower

An operating system uses the banker's algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution Allocation Маx X Y X Y PO 1 8 3 P1 3 2 6 2 P2 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: PO requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: Only REQ1 can be permitted Only REQ2 can be permitted Both REQ1 and REQ2 can be permitted Neither REQ1 nor REQ2 can be…

An operating system uses the banker's algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0O, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution Allocation Max Y X Y PO 8 4 3 P1 3 6 P2 2 1 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: PO requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: A. Only REQ1 can be permitted B. Only REQ2 can be permitted C. Both REQ1 and REQ2 can be permitted D. Neither REQ1 nor REQ2…

COURSE Operating System  Only correct answer will be upvoted. Else downvoted.

Write three-line notes on these topics:(what/why/advantage(s)/disadvantage(s)) Manchester codes

I'm trying to understand the concept before my exam. Please help me understand this: Child ID Child Name Date Sign-in Time Sign-out Time Parent ID Parent Name Parent Address 1 Octavia 19-Aug 9:00 AM 5:00 PM 1 Michael Robbeloth 365 Valleybrook Circle, Howard, OH 43028 1 Octavia 20-Aug 9:30 AM 4:30 PM 2 Jacqueline Robbeloth 365 Valleybrook Circle, Howard, OH 43028 2 Emily 19-Aug 8:02 AM 4:00 PM 3 Jack Bauer 123 Main Street, Mount Vernon, OH 3 Nick 20-Aug 8:10 AM 5:15 PM 4 Sally O'Neal 125 Main Street, Mount Vernon, OH 4 Scott 20-Aug 7:30 AM 5:25 PM 5 Scott Smith Sr. 127 Main Street, Mount Vernon, OH   The following functional dependencies could be derived from this table: Child ID --> Child Name Child ID , Date --> Sign-in, Sign-out, Parent ID Parent ID --> Parent Name, Parent Address (Assume only a single address/parent)   Is there are other functional dependencies? If so, what are they? If not, why not? Next, normalize the relation to 3NF and BCNF (if…

Design an asynchronous sequential logic circuit which has inputs (X1 and X2) and one output (Z) the output (z) must go to (1) when at the end of the input sequence (00,10), This output must be maintained (unchanged) for all inputs change until the sequence (11,10) occurs, then the output must go to zero (0). and The output flips when the input is (01,10)